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Kwon A, Hwang A, Miller CH, Reimer-Taschenbrecker A, Paller AS. Osteoporosis and bone health in pediatric patients with epidermolysis bullosa: A scoping review. Pediatr Dermatol 2024; 41:385-402. [PMID: 38205535 DOI: 10.1111/pde.15527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 12/23/2023] [Indexed: 01/12/2024]
Abstract
Nutritional compromise, low levels of vitamin D, chronic inflammation, abnormal growth, and physical inactivity affect bone metabolism and compromise long-term bone health in individuals with epidermolysis bullosa (EB). The result is a high risk for osteopenia, osteoporosis, and pathologic fractures, but this important consequence of EB has been the focus of few investigations. Our scoping review found 21 publications that assessed the current understanding and clinical practices for monitoring of osteoporosis and its treatment in EB. Recommendations summarized from 13 of these publications include early nutritional and weight assessments before 2 years of age; bloodwork every 6-12 months starting at birth; Tanner stage assessments every 6 months to detect any pubertal delay; DEXA scans starting at age 6 years with repeated scans every 1-2 years, except in mild cases; and vitamin D supplementation of 80-320 IU daily for children 0-7 years and 720 IU for patients >8 years.
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Affiliation(s)
- Andie Kwon
- Department of Dermatology and Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Austin Hwang
- Department of Dermatology and Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Corinne H Miller
- Galter Health Sciences Library & Learning Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Antonia Reimer-Taschenbrecker
- Department of Dermatology and Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Department of Dermatology, University of Freiburg, Freiburg, Germany
| | - Amy S Paller
- Department of Dermatology and Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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Reimer-Taschenbrecker A, Hess M, Davidovic M, Hwang A, Hübner S, Hofsaess M, Gewert S, Eyerich K, Has C. IL-6 levels dominate the serum cytokine signature of severe epidermolysis bullosa: A prospective cohort study. J Eur Acad Dermatol Venereol 2024. [PMID: 38376135 DOI: 10.1111/jdv.19898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 01/22/2024] [Indexed: 02/21/2024]
Abstract
BACKGROUND Systemic inflammation is considered a major player in the pathogenesis of epidermolysis bullosa (EB), but its pattern has only been described in small heterogeneous cohorts. There is controversy if and how systemic inflammation should be therapeutically targeted. METHODS We examined serum proinflammatory, anti-inflammatory, and itch related cytokines in a paediatric cohort of 29 patients with junctional and dystrophic EB. The cytokine that emerged as the most relevant was measured in a validation cohort of 42 patients during follow-up visits over 2 years. RESULTS IL-6 showed the most consistent and highest aberration dominating systemic inflammation. IL-6 correlated with wound body surface area (BSA) in both, finding and validation cohorts. Patients with less than 3% wound BSA had normal IL-6, while IL-6 levels significantly increased at more than 5% and 10% of wound BSA. TGF-β was only marginally elevated in patients with severe recessive dystrophic EB, while TNF-α, IFN-γ and IL-1β varied inconsistently. Patients reporting itch showed elevations in type 2 immunity (IgE, TSLP, IL4 and/or IL-31, respectively). CONCLUSIONS Our data suggest a dominant skin barrier and wound healing inflammatory pattern in junctional and dystrophic EB that depends on the wound area and not on the EB type. In EB, itch mediators may be similar to other pruritic disorders.
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Affiliation(s)
- A Reimer-Taschenbrecker
- Department of Dermatology, Medical Faculty and Medical Center, University of Freiburg, Freiburg, Germany
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - M Hess
- Institute of Medical Biometry and Statistics, Medical Faculty and Medical Center, University of Freiburg, Freiburg, Germany
| | - M Davidovic
- Department of Dermatology, Medical Faculty and Medical Center, University of Freiburg, Freiburg, Germany
| | - A Hwang
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - S Hübner
- Department of Dermatology, Medical Faculty and Medical Center, University of Freiburg, Freiburg, Germany
| | - M Hofsaess
- Department of Dermatology, Medical Faculty and Medical Center, University of Freiburg, Freiburg, Germany
| | - S Gewert
- Department of Dermatology, Medical Faculty and Medical Center, University of Freiburg, Freiburg, Germany
| | - K Eyerich
- Department of Dermatology, Medical Faculty and Medical Center, University of Freiburg, Freiburg, Germany
| | - C Has
- Department of Dermatology, Medical Faculty and Medical Center, University of Freiburg, Freiburg, Germany
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Zhao S, Hwang A, Miller C, Lio P. Safety of topical medications in the management of paediatric atopic dermatitis: An updated systematic review. Br J Clin Pharmacol 2023; 89:2039-2065. [PMID: 37075252 DOI: 10.1111/bcp.15751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 03/08/2023] [Accepted: 03/28/2023] [Indexed: 04/21/2023] Open
Abstract
AIM New topical agents have been developed for the treatment of atopic dermatitis (AD) in recent years. This systematic review is intended to synthesize the clinical trial literature and concisely report the updated safety and adverse effects of topical medications used to treat atopic dermatitis in children. METHODS A systematic search of Cochrane Library, Embase, PubMed and ClinicalTrials.gov from inception to March 2022 was conducted for trials of topical medications used to treat AD in patients <18 years (PROSPERO #CRD42022315355). Included records were limited to English-language publications and studies of ≥3 weeks duration. Phase 1 studies and those that lacked separate paediatric safety reporting were excluded. RESULTS A total of 5005 records were screened; 75 records met inclusion criteria with 15 845 paediatric patients treated with tacrolimus, 12 851 treated with pimecrolimus, 3539 with topical corticosteroid (TCS), 700 with crisaborole and 202 with delgocitinib. Safety data was well reported in tacrolimus trials with the most frequently reported adverse events being burning sensation, pruritus and cutaneous infections. Two longitudinal cohort studies were included, one for tacrolimus and one for pimecrolimus, which found no significant increased risk of malignancy with topical calcineurin inhibitor (TCI) use in children. Skin atrophy was identified as an adverse event in TCS trials, which other medications did not. Systemic adverse events for the medications were largely common childhood ailments. CONCLUSION Data discussed here support the use of steroid-sparing medications (tacrolimus, pimecrolimus, crisaborole, delgocitinib) as safe options with minimal adverse events for managing paediatric AD, although a larger number of TCI studies reported burning and pruritus compared to TCS studies. TCS was the only medication class associated with reports of skin atrophy in this review. The tolerability of these adverse events should be considered when treating young children. This review was limited to English-language publications and the variable safety reporting of trial investigators. Many newer medications were not included due to pooled adult and paediatric safety data that did not meet inclusion criteria.
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Affiliation(s)
- Sharon Zhao
- Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Austin Hwang
- Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Corinne Miller
- Galter Health Sciences Library, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Peter Lio
- Departments of Dermatology & Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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Hamrouni M, Hwang A, Jankowski M, Mishra J, Stokowski HS, McKenna TP, Jornod N, Langrock C, Südmeyer T, Safavi-Naeini AH, Fejer MM. Efficient and Broadband Generation of Mid-Infrared Pulses by Optical Parametric Amplification in Dispersion-Engineered Thin Film Lithium Niobate. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202226702017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Burke A, Prins P, Khan A, Hwang A, Marshall J, Unger K. Comprehensive Genetic Profiling and Clinical Outcomes in Gastrointestinal Cancers Treated with Radiotherapy. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Billstrand B, Bian K, Karler C, Ye D, Hwang A, Fan H. Solution Based Synthesis of Cs4PbBr6 Perovskite Particles with High Luminescence and Stability. ACTA ACUST UNITED AC 2018. [DOI: 10.1557/adv.2018.308] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Pickerell ATW, Hwang A, Axcell BC. Impact of Yeast-Handling Procedures on Beer Flavor Development during Fermentation. Journal of the American Society of Brewing Chemists 2018. [DOI: 10.1094/asbcj-49-0087] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- A. T. W. Pickerell
- The South African Breweries Ltd., Department of Research and Development, Box 782178, Sandton, 2146, Republic of South Africa
| | - A. Hwang
- The South African Breweries Ltd., Department of Research and Development, Box 782178, Sandton, 2146, Republic of South Africa
| | - B. C. Axcell
- The South African Breweries Ltd., Department of Research and Development, Box 782178, Sandton, 2146, Republic of South Africa
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Reid GC, Hwang A, Meisel RH, Allcock ER. The Sterile Filtration and Packaging of Beer into Polyethylene Terephthalate Containers. Journal of the American Society of Brewing Chemists 2018. [DOI: 10.1094/asbcj-48-0085] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- G. C. Reid
- The South African Breweries Ltd., P.O. Box 782178, Sandton 2146
| | - A. Hwang
- The South African Breweries Ltd., P.O. Box 782178, Sandton 2146
| | - R. H. Meisel
- The South African Breweries Ltd., P.O. Box 782178, Sandton 2146
| | - E. R. Allcock
- Microsep (Pty) Ltd., Bramley, Republic of South Africa
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Audet C, Poffenbarger B, Hwang A. SU-E-T-224: Considerations for the Proper Treatment of Multiple Cranial Metastases with Single Isocenter Volumetric Modulated Arc Therapy. Med Phys 2015. [DOI: 10.1118/1.4924585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Shanmugasegaram S, Khan S, Hwang A, Thomas S, Oh P. 201 Examining the Relationships Between Cardiac Rehabilitation (CR) Components and Long-term Physical Activity (PA) Maintenance Post-CR. Can J Cardiol 2012. [DOI: 10.1016/j.cjca.2012.07.199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Nie K, Pouliot J, Hwang A, Sneed P, McDermott M, Ma L. SU-D-211-04: Sector Intensity Modulated (SIM) Gamma Knife Stereotactic Radiosurgery. Med Phys 2012; 39:3610. [PMID: 28517415 DOI: 10.1118/1.4734658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
PURPOSE The latest Gamma Knife (GK) system, Perfexion, consists of 192 Co-60 sources divided into eight sectors. Treatment delivery includes multiple shots placed at different positions. For every shot, each sector can be either blocked or open with four different aperture sizes. However, the beam-on time is designed to be fixed. We proposed an innovative concept, Sector Intensity Modulated (SIM) Gamma Knife by dynamically varying the beam-on time for each individual sector to improve stereotactic radiosurgery planning quality. METHODS The anatomic structures and dose matrices from each sector for every shot were obtained from the GK workstation. The beam-on time for each sector was decomposed with various discrete levels and brute-force algorithm was used to get the optimal solution. The resulting SIM plan was then re-entered into the GK workstation. Six indices were used to benchmark the plan quality: Coverage, Conformality, Gradient, Maximum Dose(s) to critical structure(s), Volume receiving over 8 and 12 Gy. All the SIM plans in comparison with the original plans were further reviewed by an experienced oncologist. RESULTS The simulations were tested on various pituitary adenoma cases. Results consistently showed that SIM yielded better plans with all quantitative indices improved compared to original plan. It provides better conformality, quicker drop off of the isodose line outside the tumor, lower doses to the critical structures as optical- nerve/chiasm while maintaining at least 99% coverage of the tumor. Results were more favorable according to oncologist's view. In particular, up to 20% or 0.6 cc volume decrease in healthy tissue receiving 8 Gy was observed. This may translate into clinically observable reduction in acute/late toxicities. CONCLUSIONS Our preliminary results show that Sector Intensity Modulated Gamma Knife offers superior treatment plans compared to the originally delivered plans. Further works as adding dynamic shot location and dynamic shot shaping will be discussed.
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Affiliation(s)
- K Nie
- University of California San Francisco, San Francisco, CA
| | - J Pouliot
- University of California San Francisco, San Francisco, CA
| | - A Hwang
- University of California San Francisco, San Francisco, CA
| | - P Sneed
- University of California San Francisco, San Francisco, CA
| | - M McDermott
- University of California San Francisco, San Francisco, CA
| | - L Ma
- University of California San Francisco, San Francisco, CA
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Schriebl K, Satianegara G, Hwang A, Tan HL, Fong WJ, Yang HH, Jungbauer A, Choo A. Selective Removal of Undifferentiated Human Embryonic Stem Cells Using Magnetic Activated Cell Sorting Followed by a Cytotoxic Antibody. Tissue Eng Part A 2012; 18:899-909. [DOI: 10.1089/ten.tea.2011.0311] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Kornelia Schriebl
- Bioprocessing Technology Institute, A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore
| | - Gernalia Satianegara
- Bioprocessing Technology Institute, A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore
| | - Austin Hwang
- Bioprocessing Technology Institute, A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore
| | - Heng Liang Tan
- Bioprocessing Technology Institute, A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore
| | - Wey Jia Fong
- Bioprocessing Technology Institute, A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore
| | - Henry He Yang
- Singapore Immunology Network, A*STAR (Agency of Science, Technology and Research), Biopolis, Singapore
| | - Alois Jungbauer
- Department of Biotechnology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Andre Choo
- Bioprocessing Technology Institute, A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore
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Soto A, Hwang A, Stansbury J. Probing photopolymerization reactions with real-time UV/vis/near-IR spectroscopy. Dent Mater 2012. [DOI: 10.1016/j.dental.2012.07.135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Farrell CP, Morgan M, Rudolph DS, Hwang A, Albert NE, Valenzano MC, Wang X, Mercogliano G, Mullin JM. Proton Pump Inhibitors Interfere With Zinc Absorption and Zinc Body Stores. Gastroenterology Res 2011; 4:243-251. [PMID: 27957023 PMCID: PMC5139861 DOI: 10.4021/gr379w] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/07/2011] [Indexed: 12/17/2022] Open
Abstract
Background Proton pump inhibitors (PPIs) cause a sharp elevation of gastro-duodenal luminal pH which in turn has resulted in reports of reduced absorption of magnesium and certain other nutrients. Methods Gastroesophageal reflux disease (GERD) patients on long-term PPI therapy (> 6 months) or healthy test subjects (not on any acid preventive or neutralizing medication) were administered oral doses of zinc gluconate (26.2 mg zinc, twice daily) for 14 days followed by 5 cc venous blood samples. Plasma was analyzed for total zinc content by atomic absorption spectrophotometry. Baseline plasma and red blood cell zinc levels were also measured in these two groups when not taking any zinc supplementation. Results Plasma zinc levels of healthy controls increased by 126% during the period of zinc supplementation compared to only a 37% increase for individuals on long-term PPI therapy. On their normal diet (with no zinc supplementation), PPI-users had a 28% lower plasma zinc level than healthy controls (P < 0.005). Conclusions PPI use dramatically reduces supplemental zinc uptake and can result in decreased zinc body stores. Certain individuals on long-term PPI therapy, such as infants being treated for colic, may be at risk for decreased systemic levels of trace metals needed for developmental, regenerative and immunological requirements.
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Affiliation(s)
- Christopher P Farrell
- Department of Gastrointestinal Medicine, Lankenau Medical Center, 100 Lancaster Avenue, Wynnewood, PA 19096, USA
| | - Melissa Morgan
- Department of Gastrointestinal Medicine, Lankenau Medical Center, 100 Lancaster Avenue, Wynnewood, PA 19096, USA
| | - David S Rudolph
- Department of Gastrointestinal Medicine, Lankenau Medical Center, 100 Lancaster Avenue, Wynnewood, PA 19096, USA
| | - Austin Hwang
- Department of Gastrointestinal Medicine, Lankenau Medical Center, 100 Lancaster Avenue, Wynnewood, PA 19096, USA
| | - Nicole E Albert
- Department of Internal Medicine, Lankenau Medical Center, 100 Lancaster Avenue, Wynnewood, PA 19096, USA
| | - Mary C Valenzano
- Lankenau Institute for Medical Research, 100 Lancaster Avenue, Wynnewood, PA 19096, USA
| | - Xuexuan Wang
- Lankenau Institute for Medical Research, 100 Lancaster Avenue, Wynnewood, PA 19096, USA
| | - Giancarlo Mercogliano
- Department of Gastrointestinal Medicine, Lankenau Medical Center, 100 Lancaster Avenue, Wynnewood, PA 19096, USA
| | - James M Mullin
- Department of Gastrointestinal Medicine, Lankenau Medical Center, 100 Lancaster Avenue, Wynnewood, PA 19096, USA; Lankenau Institute for Medical Research, 100 Lancaster Avenue, Wynnewood, PA 19096, USA
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Ma L, Sahgal A, Hwang A, Hu W, Descovich M, Chuang C, Barani I, Sneed PK, McDermott M, Larson DA. A Two-Step Optimization Method for Improving Multiple Brain Lesion Treatments with Robotic Radiosurgery. Technol Cancer Res Treat 2011; 10:331-8. [DOI: 10.7785/tcrt.2012.500210] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Planning robotic radiosurgery treatments for multiple (n > 3) metastatic brain lesions is challenging due to the need of satisfying a large number of dose-volume constraints and the requirement of prescribing different dose levels to individual targets. In this study, we developed a sequential two-step optimization technique to improve the planning quality of such treatments. In contrast to the conventional approach of where all targets are simultaneously planned, we have developed a two-step optimization method. In this method, the first step was to create treatment plans for individual targets. In the second step, the 3D dose matrices associated with each plan were exported to Dicom-RT digital files and subsequently optimized. For the optimization, a singular-value-decomposition (SVD) algorithm was implemented to minimize the dose interferences among different targets. Finally, we compared the optimized treatment plans with the treatment plans created using the conventional method to determine the effectiveness of the new method. Large improvements in target dose distributions as well as normal brain sparing were found for the two-step optimization treatment plans as compared with the conventional treatment plans. The two-step optimization significantly lowered the volume of normal brain receiving relatively low doses. For example, the normal brain volume receiving 12-Gy was reduced by averaged 42% (range 34%–47%) with the two-step optimization. Such improvements generally enlarged with increasing number of targets being treated regardless of target sizes. Of note, normal brain dose was found to increase non-linearly with increasing number of targets. In summary, a two-step optimization technique is demonstrated to significantly improve the treatment plan quality as well as reduce the planning effort for multi-target robotic radiosurgery.
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Affiliation(s)
- L. Ma
- University of California San Francisco, Department of Radiation Oncology & Neurosurgery, UCSF Medical Center 505 Parnassus Avenue, Room L08 San Francisco, CA 94143, USA
| | - A. Sahgal
- Department of Radiation Oncology, Princess Margaret Hospital, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - A. Hwang
- University of California San Francisco, Department of Radiation Oncology & Neurosurgery, UCSF Medical Center 505 Parnassus Avenue, Room L08 San Francisco, CA 94143, USA
| | - W. Hu
- Department of Radiation Oncology, Fudan University Cancer Hospital, Shanghai, China
| | - M. Descovich
- University of California San Francisco, Department of Radiation Oncology & Neurosurgery, UCSF Medical Center 505 Parnassus Avenue, Room L08 San Francisco, CA 94143, USA
| | - C. Chuang
- University of California San Francisco, Department of Radiation Oncology & Neurosurgery, UCSF Medical Center 505 Parnassus Avenue, Room L08 San Francisco, CA 94143, USA
| | - I. Barani
- University of California San Francisco, Department of Radiation Oncology & Neurosurgery, UCSF Medical Center 505 Parnassus Avenue, Room L08 San Francisco, CA 94143, USA
| | - P. K. Sneed
- University of California San Francisco, Department of Radiation Oncology & Neurosurgery, UCSF Medical Center 505 Parnassus Avenue, Room L08 San Francisco, CA 94143, USA
| | - M. McDermott
- University of California San Francisco, Department of Radiation Oncology & Neurosurgery, UCSF Medical Center 505 Parnassus Avenue, Room L08 San Francisco, CA 94143, USA
| | - D. A. Larson
- University of California San Francisco, Department of Radiation Oncology & Neurosurgery, UCSF Medical Center 505 Parnassus Avenue, Room L08 San Francisco, CA 94143, USA
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Ma L, Li K, Hwang A, Sahgal A, McDermott M, Sneed P, Larson D. SU-C-BRB-06: High-Precision Volume-Staged Treatments with Stereotactic Radiosurgery. Med Phys 2011. [DOI: 10.1118/1.3611472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Pomplun M, Hwang A. The Dynamics of Top-Down and Bottom-Up Control of Visual Attention during Search in Complex Scenes. J Vis 2010. [DOI: 10.1167/10.7.1275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Ahmed F, Hwang A, Walsh E, Pomplun M. Conspicuity of Object Features Determines Local versus Global Mental Rotation Strategies. J Vis 2010. [DOI: 10.1167/10.7.1005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Hwang A, Nguyen TB, Hu W, Roach M, Gottschalk A, Pouliot J, Aubin M, Chen J. SU-GG-T-22: An Adaptive Strategy for Simultaneous Treatment of the Prostate and Pelvic Lymph Nodes. Med Phys 2010. [DOI: 10.1118/1.3468408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Kirby N, Chuang C, Pouliot J, Hwang A, Barani I. SU-GG-T-129: Sparing of Neural Stem Cells during Whole-Brain Radiation Treatments. Med Phys 2010. [DOI: 10.1118/1.3468518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Hwang A, Sneed P, Barani I, Nakamura JL, Barbaro NM, Ma L. SU-GG-T-519: Improving Gamma Knife Plans Using Independent Sector Weighting. Med Phys 2010. [DOI: 10.1118/1.3468915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Ma L, Sahgal A, Hwang A, Hu W, Chuang C, Descovich M, Larson DA. SU-GG-T-510: A Two-Step Optimization Technique for Planning Multi-Target Treatments with Robotic Radiotherapy. Med Phys 2010. [DOI: 10.1118/1.3468906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Chen C, Xia P, Bui T, Kramer M, Hwang A, Schechter N, Fowble B. Atlas-based Cardiac Contours in Breast Cancer Patients Offer Efficiency, Standardization, and Comparable Spatial and Dosimetric Accuracy when Compared to Manually Generated Contours. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.1414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Tsuji S, Hwang A, Weinberg V, Yom S, Quivey J, Xia P. Adaptive IMRT for Head and Neck Cancer Based on Automatically Generated Contours using Deformable Image Registration. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Xia P, Hwang A, Ludlum E, Aubin M, Pouliot J, Roach M. TU-D-AUD B-08: Clinical Validation of a Novel Adaptive Approach for Patients Concurrently Treated with the Prostate and Pelvic Lymph Nodes. Med Phys 2008. [DOI: 10.1118/1.2962580] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Hwang A, Mu G, Xia P. SU-GG-T-91: Decreasing IMRT Delivery Time by Accounting for Secondary Jaw Movement. Med Phys 2008. [DOI: 10.1118/1.2961843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Gillis A, Hwang A, Teo K, Bacharach S, Bucci M, Millender L, Schechter N, Quivey J, Franc B, Xia P. PET-CT for Head and Neck IMRT Planning: Target Delineation and Dose Escalation. Int J Radiat Oncol Biol Phys 2007. [DOI: 10.1016/j.ijrobp.2007.07.1636] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Xia P, Hwang A, Mu G, Ludlum E, Aubin M, Pouliot J, Roach III M. Multi-Adaptive-Plan (MAP) IMRT to Accommodate the Independent Movement of the Prostate and Pelvic Lymph Nodes: A Proof of Principle Study Driven by Clinical Necessity. Int J Radiat Oncol Biol Phys 2007. [DOI: 10.1016/j.ijrobp.2007.07.2118] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Sharma S, Vogelzang N, Beck J, Patnaik A, Mita M, Dugan M, Hwang A, Culver K, Atadja P, Prince H. 702 POSTER Phase I pharmacokinetic and pharmacodynamic study of once-weekly IV LBH589. EJC Suppl 2007. [DOI: 10.1016/s1359-6349(07)70501-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Sharma S, Vogelzang NJ, Beck J, Patnaik A, Mita M, Dugan M, Hwang A, Masson E, Culver KW, Prince H. Phase I pharmacokinetic (PK) and pharmacodynamic (PD) study of LBH589, a novel deacetylase (DAC) inhibitor given intravenously on a new once weekly schedule. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.14019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
14019 Background: LBH589 is a novel deacetylase inhibitor that inhibits proliferation of tumor cells at nanomolar levels. This phase I study tested the safety and tolerability of IV LBH589 once each week for 3 of 4 wks in pts with advanced solid tumors or lymphoma. Methods: LBH589 was administered IV over 30 min. on days 1, 8 and 15 of a 28-day cycle. Western blots on peripheral blood lymphocytes were used to study histone acetylation (HA). Plasma PK profiles were analyzed on Days 1 and 8. Results: Thirty five pts (median age: 70 yrs; 23M, 12F) have been treated on 3 dose levels [10 mg/m2 (8pts), 15 mg/m2 (8 pts), 20 mg/m2 (19 pts)] with the following tumor types: Cutaneous and peripheral T cell lymphoma (7 pts), prostate (6 pts), mesothelioma (4 pts), colon (3 pts) and other (15 pts). There was one dose-limiting toxicity (transient grade 4 thrombocytopenia) at 20 mg/m2, none at the lower doses. Other G3/G4 toxicities (all cycles) include: transient thrombocytopenia (G4–5 pts, G3–5 pts), neutropenia (G3–2 pts), anemia (G3–5 pts), G3 hypophosphatemia (1 pt), G3 hypokalemia (1 pt), G3 nausea (1 pt) and G3 pruritus (1 pt). Thrombocytopenia was transient. Of 2,042 ECGs, 1 pt had an increase in QTcF from baseline of > 60 msec another with a QTcF >500 msec, both at 20 mg/m2. There was a dose-dependent increase in HA 7 days after one dose with 43% (10 mg/m2), 50% (15 mg/m2) and 60% (20 mg/m2) of pts with increased acetylation. The LBH589 plasma conc. peaked at the end of the 0.5 hr infusion with a mean terminal half-life of 16 hr. Median Cmax achieved with 20 mg/m2 was 1,000 ng/mL (2.86 μM). The AUC0-inf increased linearly with IV doses of 10–20 mg/m2. One pt with CTCL achieved a complete response (CR) on cycle 3, Day 1; this pt had previously received oral LBH589 at 20 mg MWF, achieving a CR on cycle 6, Day 28 that lasted for 7 months. One peripheral T-Cell lymphoma pt achieved a partial response that has persisted for >7 months. One pt with prostate cancer has had a 26% reduction in nodal disease and > 50% drop in PSA in the first 2 cycles. Conclusions: The maximum tolerated dose of LBH589 given IV wkly on a 3 of 4 wk schedule is 20 mg/m2. This dose produced sustained PD effects and higher systemic exposure compared to oral LBH589. Preliminary evidence of antitumor activity has been observed. No significant financial relationships to disclose.
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Affiliation(s)
- S. Sharma
- Nevada Cancer Inst, Las Vegas, NV; Klinikum der Johannes Gutenberg-Universitat Mainz, Mainz, Germany; Institute for Drug Development,, San Antonio, TX; Novartis Pharmaceuticals Corp., East Hanover, NJ; Peter MacCallum Cancer Centre, Melbourne, Australia
| | - N. J. Vogelzang
- Nevada Cancer Inst, Las Vegas, NV; Klinikum der Johannes Gutenberg-Universitat Mainz, Mainz, Germany; Institute for Drug Development,, San Antonio, TX; Novartis Pharmaceuticals Corp., East Hanover, NJ; Peter MacCallum Cancer Centre, Melbourne, Australia
| | - J. Beck
- Nevada Cancer Inst, Las Vegas, NV; Klinikum der Johannes Gutenberg-Universitat Mainz, Mainz, Germany; Institute for Drug Development,, San Antonio, TX; Novartis Pharmaceuticals Corp., East Hanover, NJ; Peter MacCallum Cancer Centre, Melbourne, Australia
| | - A. Patnaik
- Nevada Cancer Inst, Las Vegas, NV; Klinikum der Johannes Gutenberg-Universitat Mainz, Mainz, Germany; Institute for Drug Development,, San Antonio, TX; Novartis Pharmaceuticals Corp., East Hanover, NJ; Peter MacCallum Cancer Centre, Melbourne, Australia
| | - M. Mita
- Nevada Cancer Inst, Las Vegas, NV; Klinikum der Johannes Gutenberg-Universitat Mainz, Mainz, Germany; Institute for Drug Development,, San Antonio, TX; Novartis Pharmaceuticals Corp., East Hanover, NJ; Peter MacCallum Cancer Centre, Melbourne, Australia
| | - M. Dugan
- Nevada Cancer Inst, Las Vegas, NV; Klinikum der Johannes Gutenberg-Universitat Mainz, Mainz, Germany; Institute for Drug Development,, San Antonio, TX; Novartis Pharmaceuticals Corp., East Hanover, NJ; Peter MacCallum Cancer Centre, Melbourne, Australia
| | - A. Hwang
- Nevada Cancer Inst, Las Vegas, NV; Klinikum der Johannes Gutenberg-Universitat Mainz, Mainz, Germany; Institute for Drug Development,, San Antonio, TX; Novartis Pharmaceuticals Corp., East Hanover, NJ; Peter MacCallum Cancer Centre, Melbourne, Australia
| | - E. Masson
- Nevada Cancer Inst, Las Vegas, NV; Klinikum der Johannes Gutenberg-Universitat Mainz, Mainz, Germany; Institute for Drug Development,, San Antonio, TX; Novartis Pharmaceuticals Corp., East Hanover, NJ; Peter MacCallum Cancer Centre, Melbourne, Australia
| | - K. W. Culver
- Nevada Cancer Inst, Las Vegas, NV; Klinikum der Johannes Gutenberg-Universitat Mainz, Mainz, Germany; Institute for Drug Development,, San Antonio, TX; Novartis Pharmaceuticals Corp., East Hanover, NJ; Peter MacCallum Cancer Centre, Melbourne, Australia
| | - H. Prince
- Nevada Cancer Inst, Las Vegas, NV; Klinikum der Johannes Gutenberg-Universitat Mainz, Mainz, Germany; Institute for Drug Development,, San Antonio, TX; Novartis Pharmaceuticals Corp., East Hanover, NJ; Peter MacCallum Cancer Centre, Melbourne, Australia
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Hwang A, Taylor C, Seo Y, Iwata K, Li J, Patt B, Hasegawa B. WE-D-I-609-03: Improving the Quantitative Accuracy of a Dedicated Small Animal SPECT/CT Scanner. Med Phys 2005. [DOI: 10.1118/1.1998548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Bushey ML, Hwang A, Stephens PW, Nuckolls C. The Consequences of Chirality in Crowded Arenes—Macromolecular Helicity, Hierarchical Ordering, and Directed Assembly. Angew Chem Int Ed Engl 2002. [DOI: 10.1002/1521-3757(20020802)114:15<2952::aid-ange2952>3.0.co;2-k] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Bushey ML, Hwang A, Stephens PW, Nuckolls C. The consequences of chirality in crowded arenes--macromolecular helicity, hierarchical ordering, and directed assembly. Angew Chem Int Ed Engl 2002; 41:2828-31. [PMID: 12203499 DOI: 10.1002/1521-3773(20020802)41:15<2828::aid-anie2828>3.0.co;2-t] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mark L Bushey
- Department of Chemistry, Columbia University, New York, NY 10027, USA
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Affiliation(s)
- M L Bushey
- Department of Chemistry, Columbia University New York, New York 10027, USA
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Abstract
Cyclin B1 mRNA is expressed temporally throughout the cell cycle with peak expression in G2 and M phase. Both transcriptional and posttranscriptional controls are important for this cell cycle-dependent regulation of cyclin B1 mRNA. In this study, we observed that cyclin B1 has two major transcripts: (a) a constitutively expressed transcript, and (b) a cell cycle-regulated transcript expressed predominantly during G2-M phase. These different transcripts are due to alternative start sites. The constitutively expressed transcript starts 65 bases upstream from the cell cycle-regulated message. Changes in mRNA stability did not appear to control the expression of the cell cycle-specific transcript, but we were able to identify a 24-base pair region of the cyclin B1 promoter spanning the start site of the cell cycle-regulated transcript that was critical for its cell cycle-regulated promoter activity. This suggests that transcriptional regulation is responsible for controlling the presence of each message. The 24-base pair sequence required for cell cycle regulation was notable for containing the nucleotides GGCT repeated three times. The possibility that these two transcripts might be physiologically distinct was raised when the cell cycle-specific transcript was found to be translated more efficiently in vitro than the constitutively expressed transcript. These results characterize a novel mechanism for the regulation of cyclin B1 throughout the cell cycle that is dependent upon the use of different transcriptional start sites.
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Affiliation(s)
- A Hwang
- Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, USA
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Hwang A, Muschel RJ. Radiation and the G2 phase of the cell cycle. Radiat Res 1998; 150:S52-9. [PMID: 9806609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Exposure of mammalian cells to X rays results in prolongation of the cell cycle, including delays or arrests in G1, S and G2 phase. While G1-phase arrest occurs only in cells with wild-type p53 function, a G2-phase delay occurs in all cells regardless of p53 status. In this review, we summarize what is known about cell cycle progression through G2 and M phase and discuss the experimental findings that implicate different mechanisms in the G2-phase delay. Finally, we consider the possibility that G2-phase arrest plays a role in cell survival after irradiation.
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Affiliation(s)
- A Hwang
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia 19104, USA
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Maity A, Hwang A, Janss A, Phillips P, McKenna WG, Muschel RJ. Delayed cyclin B1 expression during the G2 arrest following DNA damage. Oncogene 1996; 13:1647-57. [PMID: 8895510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Exposure of cells to DNA damaging agents results in a G2 arrest. Exposure of HeLa cells to camptothecin, etoposide or nitrogen mustard for 1 h in S phase resulted in delayed expression of cyclin B1 mRNA during the G2 arrest. Initially the levels of cyclin B1 protein were low as well; however, with extended time the cells blocked in G2 regained higher levels of cyclin B1 protein. In the case of cells treated with nitrogen mustard the higher levels coincided with cells exiting the G2 block into G1. However, with camptothecin or etoposide treatment, while the accumulation of cyclin B1 protein was delayed, its levels eventually surpassed peak levels seen in control cells, in spite of the fact that cells were still blocked in G2. These cells did not continue to progress through the cell cycle indicating further complexity to the mechanisms underlying the G2 block. Decreased transcription and stability of cyclin B1 mRNA were shown to occur after treatment with these DNA damaging agents. These results indicate that suppression of cyclin B1 mRNA expression is one consequence of DNA damage in HeLa cells.
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Affiliation(s)
- A Maity
- Department of Radiation Oncology, University of Pennsylvania School of Medicine, Philadelphia, USA
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Abstract
Cyclin B1 mRNA expression varies through the cell cycle with its peak in G2/M. In cycling mammalian cells, its lowest level is in G1 with a steady increase in S until a level 50-fold greater than that in G1 is reached. In order to characterize the transcriptional component to this variation in expression, we cloned the upstream region 872 base pairs upstream from the start site of the cyclin B1 gene and have demonstrated that it confers cell cycle-dependent regulation onto two reporter genes, both chloramphenicol acetyltransferase and luciferase. Its activity was 25-fold greater in G2/M than in G1 in HeLa cells with intermediate activity in S. This cyclical activity could be seen with sequences encompassing only 90 base pairs upstream from the start site. Protein binding to this region was demonstrated using electrophoretic mobility shift assays, and the binding profiles appeared to vary depending upon the phase of the cycle in which the extracts are made. Thus, transcriptional control plays an important role in determining cyclin B1 mRNA levels, and cell cycle-dependent activity is regulated through interactions with the region 90 bases upstream from the start site.
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Affiliation(s)
- A Hwang
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia 19104, USA
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Williams RE, Kass DA, Kawagoe Y, Pak P, Tunin RS, Shah R, Hwang A, Feldman AM. Endomyocardial gene expression during development of pacing tachycardia-induced heart failure in the dog. Circ Res 1994; 75:615-23. [PMID: 7923607 DOI: 10.1161/01.res.75.4.615] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Selective and specific changes in gene expression characterize the end-stage failing heart. However, the pattern and relation of these changes to evolving systolic and diastolic dysfunction during development of heart failure remains undefined. In the present study, we assessed steady-state levels of mRNAs encoding a group of cardiac proteins during the early development of left ventricular dysfunction in dogs with pacing-induced cardiomyopathy. Corresponding hemodynamic assessments were made in the conscious state in the same animals and at the same time points at baseline, after 1 week of ventricular pacing, and at the onset of clinical heart failure. Systolic dysfunction dominated after 1 week of pacing, whereas diastolic dysfunction was far more pronounced with the onset of heart failure. Atrial natriuretic factor mRNA was undetectable in 7 of 12 hearts at baseline but was expressed in all hearts at 1 week (P < .01 by chi 2 test), and it increased markedly with progression to failure (P = .05). Creatine kinase-B mRNA also rose markedly with heart failure (P < .01). Levels of mRNA encoding beta-myosin heavy chain, mitochondrial creatine kinase, phospholamban, and sarcoplasmic reticulum Ca(2+)-ATPase did not significantly change from baseline, despite development of heart failure. Additional analysis to determine if these mRNA changes were related to the severity of diastolic or systolic dysfunction revealed that phospholamban mRNA decreased in hearts with larger net increases in end-diastolic pressure (+19.2 +/- 1.9 mm Hg) compared with those hearts in which it did not change (+4.0 +/- 4.9, P < .02).(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- R E Williams
- Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, Md
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Hikima T, Ikeda K, Lin SB, Hwang A, Takano K. [A case report of the chronic desquamative gingivitis (author's transl)]. Nihon Shishubyo Gakkai Kaishi 1976; 18:423-8. [PMID: 1075081 DOI: 10.2329/perio.18.423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Hikima T, Ikeda K, Hwang A, Lin S. [A long-term observation following tooth hemisection for patients with periodontal disease (author's transl)]. Nihon Shishubyo Gakkai Kaishi 1975; 17:315-21. [PMID: 1075055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Ikeda K, Hikima T, Lin S, Hwang A. [A physical property of pulsating water pressure. I. (author's transl)]. Nihon Shishubyo Gakkai Kaishi 1974; 16:173-8. [PMID: 4549391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Smith SR, Petillo J, Hwang A. Further studies with the potentiated reagin response to egg albumin. Int Arch Allergy Appl Immunol 1972; 43:145-57. [PMID: 4120033 DOI: 10.1159/000230830] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
High titers of reagins were obtained in rats by initial immunization with egg albumin and <i>B. pertussis </i>and subsequent infection with larvae of <i>N. brasiliensis. </i>These antibodies have physicochemical properties and biological activities identical to those of rat immunoglobulin E (IgE). IgE type antibodies against <i>N. brasiliensis </i>are also produced in these same animals but not until the titers of IgE against egg albumin have decreased.
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